Bis-o-aminophenols and processes for producing...

Details Bis-o-aminophenols and processes for producing... Bis-o-aminophenols and processes for producing...

2005-03-01

2005-03-01

Davis, Brian (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C564S308000, C564S335000

Reexamination Certificate

active

06861560

ABSTRACT:
A bis-o-aminophenol has a formula IThese bis-o-aminophenols permit the preparation of polybenzoxazoles stabilized at high temperatures. The bis-o-aminophenols are preferably prepared from the corresponding diols, which are first nitrosated. The nitroso compound is then reduced to the amino compound by hydrogenation with Pd/C and H2.

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